This section is from the book "British Wild Flowers - In Their Natural Haunts Vol5-6", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
The habitat of this plant is bogs and moist heaths. The plant has the rosette habit. The stem is short and leafy. The leaves are oblong, spoon-shaped, erect, or inversely egg-shaped, blunt, the leaf-stalks are hairless. The scapes rise from the base of the rosette, and are curved below. The rachis is not closely bent-back. The flowers are white, with 5-8 segments. The capsule is pear-shaped, equalling the sepals. The seeds are egg-shaped, rough. The plant is 2-4 in. high, flowering in July and August. It is a herbaceous perennial.
The habitat of this species is wet moors and bogs. The habit is as in the last. It is a larger and taller plant. The leaves are nearly erect, inversely egg-shaped, lance-shaped, linear to spoon-shaped, blunt, the foot-stalk hairless. The scapes rise from the centre of the rosette. The flowers are white, with 5-8 segments. The capsule is inversely egg-shaped, longer than the sepals. The seed has a loose, chaffy coat. The plant is 4-8 in. high, flowering in July and August, and is a herbaceous perennial.